20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
19-04-2026 21:23
Steve ClementsBonjour, I found this anamorphic fungus on old pl
19-04-2026 20:46
Steve Clements1 mm diameter approx spherical conidiophores on pl
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
17-04-2026 19:16
Enrique Rubio
Hi to everybodyI would appreciate any assistance r
14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
17-04-2026 15:14
Bruno Coué
Bonjour.Récoltes du 16/04/2026, sur feuilles mort
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
14-04-2026 21:52
Gernot FriebesHi,found on dead leaves of Carex elata. Conidia: 4
16-04-2026 22:09
Buckwheat PeteHello, I'd like to ask about this older specimen:
Karstenia 2
Andgelo Mombert,
29-12-2019 20:33
Bonsoir,
Apothécies de 1-1,5 mm de diamètre, sur Fraxinus excelsior.
Encore un Karstenia, je trouve ces petits ascomycètes fort sympathiques !
Spores avec 15 cloisons.
J'hésite entre idaei et guttulata avec une préférence pour la seconde...
Confirmez-vous que l'appareil apical est compatible avec guttulata ?
Merci !
Andgelo
Andgelo Mombert,
29-12-2019 20:34
Re : Karstenia 2
KOH + IKI
Hans-Otto Baral,
30-12-2019 07:03
Re : Karstenia 2
I would place this in K. idaei. my folder includes samples with and without apical ring. Whether this is a specific character or not is unknown and requires molecular study.
My folder rubrobrunnea - guttulata contains probably also K. idaei, I cannot say, but see little differences.
Andgelo Mombert,
30-12-2019 15:37
Re : Karstenia 2
Merci Zotto,
Tu me confirmes que c'est bien l'appareil apical qu'on voit sur mes photos ? La forme est un peu différente des appareils apicaux visibles dans tes dossiers.
Andgelo
Hans-Otto Baral,
30-12-2019 22:02
Re : Karstenia 2
These rings are difficult to demonstrate, and maybe your method with KOH+IKI is best to differentiate between outer amyloid wall and inner ring structure. presumably KOH causes a compression of the hemiamyloid ring (curling of molecules).